|
gptkb:de_Sitter_universe
|
positive
|
|
gptkb:Braunston_Tunnel
|
slight S-bend
|
|
gptkb:Torus
|
variable
|
|
gptkb:anti-de_Sitter_universe
|
negative
|
|
gptkb:compact_hyperbolic_surfaces
|
negative
|
|
gptkb:de_Sitter_metric
|
positive
|
|
gptkb:hyperbolic_geometry
|
negative
|
|
gptkb:anti-de_Sitter_metric
|
negative
|
|
gptkb:four-dimensional_anti-de_Sitter_space
|
negative
|
|
gptkb:Reuleaux_triangle
|
constant width
|
|
gptkb:Circle_(2D_sphere)
|
constant
|
|
gptkb:3-dimensional_spherical_geometry
|
positive
|
|
gptkb:Pseudo-Riemannian_manifold
|
gptkb:Riemann_curvature_tensor
|
|
gptkb:Braunston_Tunnel
|
yes
|
|
gptkb:hyperbolic_plane
|
negative
|
|
gptkb:S^2_×_R_geometry
|
non-negative
|
|
gptkb:Weil–Petersson_metric
|
negative
|
|
gptkb:de_Sitter_spacetime
|
positive
|